The Japanese have been developing this for decades. They knew a demographic bomb was going to go off, and they knew that nurses were going to need some help in dealing with the elderly. So there are now production power suits geared towards assisting nurses in lifting patients.
Also there is a very strong possibility this technology can be applied to assistive systems for paraplegics and quadriplegics. Imagine someone who was "sentenced to the Chair" for the rest of their lives being able to walk again. I mean, neither application is particularly sexy, not like super-soldiers and being able to do the last battle in Aliens for real, but I would say that this would be a boon for humanity far greater than any military application.